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synch. or non-synch voltage reg? what's the difference?

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Discussion in 'Electronic Design' started by Franco, Apr 3, 2008.

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  1. Apr 3, 2008 #1
    Franco

    Franco Guest

    Hi guys, I would like to know the difference between synchronous and
    non-synchronous switching voltage regulators. Can someone help me?

    Greetings.
     
  2. Apr 3, 2008 #2
    Franco

    Franco Guest

    Maybe I got the answer. Apparently, synchronous Buck SMPS's use 2
    MOSFETs instead of 1 MOSFET and 1 clamping diode for the sake of
    efficiency. The name synchronous come from the fact that the bottom
    MOSFET (acting as clamping diode) has to be synchronized with the
    upper one, not to ground the switched voltage.
     
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